Andonegui, ImanolLanda-Torres, ItziarManjarres, DianaGarcia-Adeva, Angel J.Del Ser, Javier2017-03Andonegui , I , Landa-Torres , I , Manjarres , D & Garcia-Adeva , A J 2017 , Novel Light Coupling Systems Devised Using a Harmony Search Algorithm Approach . in J Del Ser (ed.) , unknown . vol. 514 , 2194-5357 , SPRINGER-VERLAG BERLIN, HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY , pp. 294-303 , Proceedings of the 3rd International Conference on Harmony Search Algorithm, ICHSA 2017 , Bilbao , Spain , 22/02/17 . https://doi.org/10.1007/978-981-10-3728-3_29conference978-981-10-3727-69789811037276978-9-8110-3728-3researchoutputwizard: 11556/387Publisher Copyright: © Springer Nature Singapore Pte Ltd. 2017.We report a critical assessment of the use of an Inverse Design (ID) approach steamed by an improved Harmony Search (IHS) algorithm for enhancing light coupling to densely integrated photonic integratic circuits (PICs) using novel grating structures. Grating couplers, performing as a very attractive vertical coupling scheme for standard silicon nano waveguides are nowadays a custom component in almost every PIC. Nevertheless, their efficiency can be highly enhanced by using our ID methodology that can deal simultaneously with many physical and geometrical parameters. Moreover, this method paves the way for designing more sophisticated non-uniform gratings, which not only match the coupling efficiency of conventional periodic corrugated waveguides, but also allow to devise more complex components such as wavelength or polarization splitters, just to cite some.10526253enginfo:eu-repo/semantics/restrictedAccessconference output10.1007/978-981-10-3728-3_29Improved harmony searchGrating structurePhotonic integrated circuitImproved harmony searchGrating structurePhotonic integrated circuitControl and Systems EngineeringGeneral Computer Sciencehttp://www.scopus.com/inward/record.url?scp=85012173073&partnerID=8YFLogxK